Home / 651,405.20-977,683.80-384,832.40

Finding the Fourth Proportional to 651,405.20, 977,683.80 and 384,832.40

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Solution

The fourth proportional to 651,405.20, 977,683.80 and 384,832.40 is: 577,588.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,405.20 : 977,683.80 = 384,832.40 : x
  2. Step 2: Convert to fraction form
    651,405.20/977,683.80 = 384,832.40/x
  3. Step 3: Cross multiply
    651,405.20x = 977,683.80 × 384,832.40
  4. Step 4: Simplify right side
    651,405.20x = 376,244,403,195.12
  5. Step 5: Solve for x
    x = 376,244,403,195.12/651,405.20
  6. Step 6: Final answer
    x = 577,588.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.